Combining sensors for greater accuracy

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Plot-level fusion modelling for system design

Accurately localising and tracking air targets using ground-based sensors is a demanding task. Waterfall Solutions helped one of its customers develop a specification for a multiple ground-based sensor system that will accurately determine target positions and track multiple targets using radar and electro-optic sensor measurements.

Using our expertise in data fusion algorithms and knowledge of sensor systems, a comprehensive study of data fusion architecture and algorithm options were assessed and the performance of the final specified system was modelled.



Schematic showing sensor position

Given the scenario illustrated in the plan-view diagram above, two sensors detect and track an inbound aircraft.

The graph below shows the along line-of-sight accuracy achievable through the fusion of the sensor reports as a function of target range and sensor separation distance.



Predicted accuracy depends on separation